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3 years ago

A large round pizza has a diameter of 14 inches what is the approximate area of the pizza

Mathematics

1 answer:

ruslelena [56]3 years ago

6 0

The area of a circle is found using the equation A = πr^2

r is the radius which is 1/2 the diameter

r = 14 /2 = 7

Area = π7^2

Area = 49π

Using 3.14 for π

Area = 49 x 3.14

Area = 153.86 square inches. Round the answer as needed.

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45 POINTS PLZ ANSWER!!!!!!!!!!!!!!!!!!!!!!!!!!

Bad White [126]

Answer:

x = 3/4 x 21

Step-by-step explanation:

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3 years ago

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Please help I don't understand.

Softa [21]

$A(p) =2p \pi \\ p(t) = 6t \\ A(p(t)) = 2 \times 6t \times \pi = 12t\pi$

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2 years ago

A city currently has 31,000 residents and is adding new residents steadily at the rate of 1200 per year. If the proportion of re

dlinn [17]

Answer:

Population of the city after 7 years from now, P(7) = 6370

Given:

Initial Population, $P_{i} = 31000$

rate, r(t) = 1200 /yr

S(t) = [/tex]\frac{1}{1 + t}[/tex]

Step-by-step explanation:

Let the initial population be $P_{i} = 31000$

The population after T years is given by the equation:

$P(T) = P_{i}S(T) + \int_{0}^{T}S(T - t)r(t) dt$ (1)

Thus, the population after 7 years from now is given by using eqn (1):

$P(7) = \frac{3100}{1 + 7} + 1200\int_{0}^{7}\frac{1}{8 - t} dt$

$P(7) = 3875 - 1200ln(8 - t)|_{0}^{7}$

$P(7) = 3875 - 1200(ln(1) - ln(8))$

$P(7) = 3875 + 2495 = 6370$

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3 years ago

Solve for the value of X as you should solve for X and explain.

Varvara68 [4.7K]

Answer:

12cos59, about 6.18

Step-by-step explanation:

cos59 = x/12

(adjacent/hypotenuse)

x = 12cos59

plugging this into a calculator gets you about 6.18

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3 years ago

Y-3x=3 and x-2y=4 using elimination method

solniwko [45]

Answer:

x = -2, y = -3

Step-by-step explanation:

y - 3x = 3

x - 2y = 4

-3x + y = 3

x - 2y = 4

-6x + 2y = 6

x - 2y = 4

Add the equations.

-5x = 10

x = -2

Substitute -2 for x in the first original equation and solve for y.

y - 3x = 3

y - 3(-2) = 3

y + 6 = 3

y = -3

Answer: x = -2, y = -3

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4 years ago

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